Which events were major contributors to the American Civil War? (Choose more than one answer.)
Aabraham Lincoln wins the presidential election
Bthe Dred Scott decision makes slavery legal in all territories
CWalt Whitman's leaves of grass is published
Dcommodore perry opens japan to world japan to world trade
Aabraham Lincoln wins the presidential election
Bthe Dred Scott decision makes slavery legal in all territories
CWalt Whitman's leaves of grass is published
Dcommodore perry opens japan to world japan to world trade